Maxillary Sinus Augmentation Using CAD/CAM Allogenic Bone Blocks Versus Particulate Allogenic Grafts

May 17, 2026 updated by: mona samy sheta, Tanta University

Maxillary Sinus Augmentation Using CAD/CAM Customized Allogenic Bone Blocks Versus Particulate Allogenic Grafts for Delayed Implant Placement: A Randomized Clinical Trial

28 patients will be included in this study with atrophic posterior maxillary ridge due to sinus pneumatization who will randomly assigned to two groups

  • Group I: sinus lifting using CAD/CAM allogenic block through lateral window technique
  • Group II: sinus lifting using particulate allogenic graftthrough lateral window technique

Study Overview

Status

Enrolling by invitation

Conditions

Intervention / Treatment

Detailed Description

28patients will be included in this study with an atrophic posterior maxillary ridge due to sinus pneumatization, who will be randomly assigned to two groups

  • Group I: sinus lifting using CAD/CAM allogenic block through lateral window technique
  • Group II: sinus lifting using particulate allogenic graft through the lateral window technique
  • Surgical procedure: A full-thickness, wide mucoperiosteal flap was elevated buccally. Alateral bony window of the maxillary sinus will be made then the sinus lining will be elevated carefully. The CAD/CAM allogenic block will be inserted and fixed in its position via a titanium screw to the crest of maxillary ridge (group I). In group II the particulate bone will be packed at the site of augmentation

  • The lateral window will be covered with collagen membrane, the flap will reposited in its place and sutured.

    6 months later, implants will be inserted

Study Type

Interventional

Enrollment (Estimated)

28

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Egypt
      • Tanta, Egypt, 3111
        • Faculty of Dentistry, Tanta University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • above 20 years
  • ridge height less than or equal to 5 mm
  • healthy clear sinus

Exclusion Criteria:

  • systemic disease affect bone healing
  • heavy smokers
  • disease or pathology within the sinus

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: CAD/CAM allogenic block
sinus lifting using CAD/CAM allogenic block through lateral window technique
Procedure: sinus lifting using CAD/CAM allogenic block

A full-thickness, wide mucoperiosteal flap was elevated buccally. A lateral bony window of the maxillary sinus will be made, then the sinus lining will be carefully elevated. The CAD/CAM allogenic block will be inserted and fixed in its position via a titanium screw to the crest of maxillary ridge (group I).

• The lateral window will be covered with collagen membrane, the flap will be repositioned in its place and sutured.
Experimental: particulate allogenic graft
sinus lifting using particulate allogenic graft through lateral window technique
Procedure: sinus lifting using particulate allogenic graft
In group II the particulate bone will packed at the site of augmentation

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
bone height gain
Time Frame: 6 months
using CBCT
6 months
marginal bone resorption around implants
Time Frame: 6 months
CBCT
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Tanta University

Investigators

  • Principal Investigator: mohamed h helal, lecturer, Tanta University
  • Principal Investigator: rehab ghouraba, professor, Tanta University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 3, 2025

Primary Completion (Estimated)

December 10, 2026

Study Completion (Estimated)

March 19, 2027

Study Registration Dates

First Submitted

May 17, 2026

First Submitted That Met QC Criteria

May 17, 2026

First Posted (Actual)

May 22, 2026

Study Record Updates

Last Update Posted (Actual)

May 22, 2026

Last Update Submitted That Met QC Criteria

May 17, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • abcd (CardioDx)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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